In the span of about a month, four start-up car-building companies in the US have encountered serious problems. Fisker laid off 75 percent of its employees, Coda filed for bankruptcy, Carbon Motors pulled out of its Indiana assembly plant and now VPG Autos has ceased its operations. VPG has not officially filed for bankruptcy, but it is no longer building its wheelchair-accessible MV-1 (pictured) at the AM General plant near South Bend, IN.